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Pretreatment: the key to unlocking low‐cost cellulosic ethanol
New transportation fuels are badly needed to reduce our heavy dependence on imported oil and to reduce the release of greenhouse gases that cause global climate change; cellulosic biomass is the only… Expand
Physical and chemical characterizations of corn stover and poplar solids resulting from leading pretreatment technologies.
In order to investigate changes in substrate chemical and physical features after pretreatment, several characterizations were performed on untreated (UT) corn stover and poplar and their solids… Expand
Lignin Valorization: Improving Lignin Processing in the Biorefinery
Background Lignin, nature’s dominant aromatic polymer, is found in most terrestrial plants in the approximate range of 15 to 40% dry weight and provides structural integrity. Traditionally, most… Expand
BSA treatment to enhance enzymatic hydrolysis of cellulose in lignin containing substrates
Cellulase and bovine serum albumin (BSA) were added to Avicel cellulose and solids containing 56% cellulose and 28% lignin from dilute sulfuric acid pretreatment of corn stover. Little BSA was… Expand
Lignin content in natural Populus variants affects sugar release
- M. Studer, Jaclyn D Demartini, +5 authors C. Wyman
- Chemistry, Medicine
- Proceedings of the National Academy of Sciences
- 28 March 2011
The primary obstacle to producing renewable fuels from lignocellulosic biomass is a plant's recalcitrance to releasing sugars bound in the cell wall. From a sample set of wood cores representing… Expand
Combined sugar yields for dilute sulfuric acid pretreatment of corn stover followed by enzymatic hydrolysis of the remaining solids.
A number of previous studies determined dilute acid pretreatment conditions that maximize xylose yields from pretreatment or glucose yields from subsequent digestion of the pretreated cellulose, but… Expand
What is (and is not) vital to advancing cellulosic ethanol.
- C. Wyman
- Biology, Medicine
- Trends in biotechnology
- 1 April 2007
Ethanol made biologically from cellulosic biomass, including agricultural and forestry residues, portions of municipal waste, and herbaceous and woody crops, is finally being widely recognized as a… Expand
Xylooligomers are strong inhibitors of cellulose hydrolysis by enzymes.
Typically, the enzymatic hydrolysis rate of lignocellulosic biomass is fast initially but then slows down more rapidly than can be explained by just consumption of substrate. Although several factors… Expand
Refining sweet sorghum to ethanol and sugar: economic trade-offs in the context of North China.
Reducing the use of non-renewable fossil energy reserves together with improving the environment are two important reasons that drive interest in the use of bioethanol as an automotive fuel.… Expand
Enzymatic hydrolysis of cellulosic biomass
Biological conversion of cellulosic biomass to fuels and chemicals offers the high yields to products vital to economic success and the potential for very low costs. Enzymatic hydrolysis that… Expand